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(7)
FREQUENCY STANDARD
Switch
A two-position slide switch. In the upper
position internal standard is selected, in the
lower position external standard input is
selected.
FRONT PANEL SOCKETS
3.2
(1) INPUT socket (Input •A•
on the 9059)
(2)
FREQUENCY STANDARD
(3)
Input Socket
Is·
A BNC coaxial socket for connection of the
1 OHz-80MHz signal under test. On the 9059
two input sockets are provided. (See Input
I
s•).
A BNC socket which accepts a 1 MHz external
frequency standard when the FREQUENCY
STANDARD switch is set to EXTERNAL. On
the Model 9059 a 1M Hz reference frequency
output, derived from the internal frequency
standard, is available at this socket when the
FREQUENCY STANDARD switch is set to
INTERNAL.
Model 9059 only. A BNC socket which
accepts the 40MHz- 560MHz input signal.
REAR PANEL COMPONENTS
3 .3
The power pack constitutes the rear portion of the instrument and the rear panel
details for the two types of pack are as follows:-
Mains Pack
Battery Pack
9057/9059
(a) Voltage Selector.
(b) Three-pin mains plug.
(c) Mains fuse.
(a) CHARGE/OPERATE Switch: this two-position toggle switch must
be
in the
OPERATE position to supply power to the instrument.
(b) Three-pin mains plug (for battery charging).
(c) Mains fuse.
3-2
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